i spent some time in afghanistan. i am hopeful that either one of you will test us here at not acknowledge that bribes have been an essential part of us doing business in afghanistan, regardless of what we are doing. what can you tell the committee about bribes in the bribes that have been paid at various places and levels, whether it is under the aegis of security or other services that are needed by local folks that are used to getting their piece of the pie? >> i can tell you, we do not have any part of that whatsoever. we have a very strict company policy against bribes, and we'd just do not participate in that. on several locations, it costs us delays. we have had to suffer because we did not agree to play that game. but we really do not. >> mr. walker? >> we have seen no evidence of our security personnel providing bribes. the casualties that we're taking would indicate that that is not something that we sponsor or that our security provides. >> i assume as the security costs went way up, the casualties went dow